Printing on bottom states, "1557-42 US Navy Yard, Charleston, SC. October 1, 1942. Six ships in Dry Dock #1 on blocks, 4 mine sweepers, 1 SC and 1 PTC. File 13804."
Writing on bottom states, "930-41 US Navy Yard, Charleston, SC. September 4, 1941. USS YSD-12 Laying keel, Lt.(j.g.) B. G. Wade striking first arc. File 10557."
Under tab, "Buildings 1941, 1942" Printing on bottom states, "1292-41 US Navy Yard, Charleston SC. September 3, 1941. Building #13, Contract NOy-4413, looking northwest. Administration building extension. File 9912."